luckyforyou
Member
this is copy pasted from what i posted from arduino forums..
-------
Hi, i just need to ask.. as to what type of mic/mic module is capable of distinguishing these two sounds..
video: https://www.youtube.com/watch?v=f9Ob0VpEqz0
see, the corner of the floor tiles is producing a sound different from whats in the middle is producing, everytime i tap it.. like in the corner(tik,tik,tik)... middle (tok,tok,tok)..
the one with the "tok tok tok" sounds differently because it seems to have a hollow concrete/adhesive underneath, hence failing tiles..
say the output would be.. LED be logic 1 everytime the tok tok tok sound is recognized by the sensor..
my local electronics supplier suggested I buy this: https://www.adafruit.com/product/1063
and also a piezo ceramic disc: https://i.ebayimg.com/images/g/0bEAAOSwR5VZk6kI/s-l225.jpg
Will this be enough though? are there any studies related to this?
also, I might stay away from using the piezo since i will be attaching a servo motor on a 4wd, and let the servo(attached with stick.. with ball bearing.. etc.) do the tapping.. if piezo is used, im afraid it will be dragged everytime the 4wd moves..
sorry for the english...
-------
will my project be feasible using a teensy? what mic should i use?
arduino forum member suggested i use a pi, but I kinda want to use a platform that is programmable in C.
also, i found this while researching: https://learn.adafruit.com/fft-fun-with-fourier-transforms/spectrogram
-------
Hi, i just need to ask.. as to what type of mic/mic module is capable of distinguishing these two sounds..
video: https://www.youtube.com/watch?v=f9Ob0VpEqz0
see, the corner of the floor tiles is producing a sound different from whats in the middle is producing, everytime i tap it.. like in the corner(tik,tik,tik)... middle (tok,tok,tok)..
the one with the "tok tok tok" sounds differently because it seems to have a hollow concrete/adhesive underneath, hence failing tiles..
say the output would be.. LED be logic 1 everytime the tok tok tok sound is recognized by the sensor..
my local electronics supplier suggested I buy this: https://www.adafruit.com/product/1063
and also a piezo ceramic disc: https://i.ebayimg.com/images/g/0bEAAOSwR5VZk6kI/s-l225.jpg
Will this be enough though? are there any studies related to this?
also, I might stay away from using the piezo since i will be attaching a servo motor on a 4wd, and let the servo(attached with stick.. with ball bearing.. etc.) do the tapping.. if piezo is used, im afraid it will be dragged everytime the 4wd moves..
sorry for the english...
-------
will my project be feasible using a teensy? what mic should i use?
arduino forum member suggested i use a pi, but I kinda want to use a platform that is programmable in C.
also, i found this while researching: https://learn.adafruit.com/fft-fun-with-fourier-transforms/spectrogram